# Service bulletin PIT6255

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 11011431
- Published by NHTSA: 2024\-12\-05
- Manufacturer's number: PIT6255
- Manufacturer's date: 2024\-10\-09
- NHTSA component: SUSPENSION

## NHTSA's summary

This Preliminary information communicates a diagnostic tip when experiencing an error when trying to perfom a trim height learn or review pressure data in GDS

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2024/MC-11011431-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2024/MC-11011431-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Suspension

## Vehicles listed

- 2021 to 2024 CADILLAC ESCALADE
- 2021 to 2024 CADILLAC ESCALADE ESV
- 2024 to 2025 CHEVROLET SILVERADO EV
- 2021 to 2024 CHEVROLET SUBURBAN 1500
- 2021 to 2024 CHEVROLET TAHOE
- 2022 to 2025 GMC HUMMER EV PICKUP
- 2024 to 2025 GMC SIERRA EV
- 2021 to 2024 GMC YUKON
- 2021 to 2024 GMC YUKON XL

## Recalls for the same vehicles and component

- [23V642000](/recalls/nhtsa/23V642000.md), 2023-09-20: SUSPENSION:REAR

## Other bulletins for the same vehicles and component

- [25\-NA\-152](/bulletins/11025555.md), 2025-11-15, Service bulletin: SUSPENSION. this bulletin advises the tech not to replace the shock for possible air leak, but to replace the air valve on the shock.
- [N252527500](/bulletins/11025484.md), 2025-11-12, Service campaign: SUSPENSION. Certain vehicles may have a condition in which the Rear Spring U\-bolt fasteners are torqued below specification. Dealers are to torque both the right and left side Rear Spring U\-bolt fasteners to specification.
- [25\-NA\-110](/bulletins/11024335.md), 2025-10-16, Service bulletin: SUSPENSION. This bulletin advises the techs that the front and or rear shocks need to be replaced as a set and not 1 at a time to avoid the road and ride performance not to be compromised.
- [N252507500](/bulletins/11023160.md), 2025-09-17, Service campaign: SUSPENSION. Certain vehicles may have a condition in which the rear lower control arm bolts were not fully torqued. Dealers are to perform a rear wheel alignment and properly torque all four rear lower control arm bolts.
- [25\-NA\-110](/bulletins/11022032.md), 2025-08-21, Service bulletin: SUSPENSION. This bulletin advises the techs that the front and or rear shocks need to be replaced as a set and not 1 at a time to avoid the road and ride performance not to be compromised.
- [N252508800](/bulletins/11019703.md), 2025-06-24, Service campaign: SUSPENSION. Customer Satisfaction Program. Certain vehicles listed above may have improper lubrication of the rear axle assembly. Dealers will replace the rear axle.
- [PI0281L](/bulletins/11019516.md), 2025-06-12, Service bulletin: STEERING; POWER TRAIN; SUSPENSION. This preliminary informational \(PI\) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
- [24\-NA\-099](/bulletins/11015606.md), 2025-03-14, Service bulletin: STRUCTURE:BODY; SUSPENSION. This bulletin provides a service procedure to replace the sway bar bracket retainers if found the cause of the clunking noise from front of vehicle.
- [05\-03\-07\-009L](/bulletins/11015409.md), 2025-03-08, Service bulletin: SUSPENSION; WHEELS. This service bulletin provides information on Wheel Alignment Specifications, Requirements and Recommendations for GM Vehicles.
- [19\-NA\-129](/bulletins/11015042.md), 2025-03-05, Service bulletin: SUSPENSION. This technical bulletin provides repair information to correct a customer concern of a squeak and/or clunking noise coming from the rear of the vehicle.

JSON: [/v1/bulletins/11011431](/v1/bulletins/11011431)

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